# Empirical Sleep & apnea care — REM & deep tracker for Watch > Apple Watch sleep tracker and analysis for improved sleep and apnea risk assessment. (iPhone/iPad app by Empirical Health, Inc..) - Source: https://appshunter.io/ios/app/empirical-sleep-and-apnea-care/id1623615785 (this page in markdown: same URL + `.md`) - Developer: [Empirical Health, Inc.](https://appshunter.io/developer/1623615997) - Category: Health & Fitness, Medical - Price: Free with in-app purchases - Rating: 4.70/5 from 168 App Store ratings · 18 written reviews indexed - Age rating: 12+ - Requires: iOS 15.0 · 38 MB - Languages: American English - Released: 2022-07-11 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/empirical-sleep-and-apnea-care/id1623615785/reviews.md ## What is Empirical Sleep & apnea care? Your Apple Watch tracks sleep stages, heart rate, heart rate variability (HRV), blood oxygen, ECG, temperature, sleep apnea, breathing disturbances, and more—but what does all that data mean? More importantly, what do you actually do to get more shut eye? If your Apple Watch detects sleep apnea, get medical care covered by insurance. Empirical Sleep distills your Apple Watch health data into one simple sleep score, then suggests actions to help you improve your sleep duration, onset, and quality. Unlike other free sleep trackers for Apple Watch, we're focused not just on more data, but helping you actually sleep better and get more shuteye. ** Sleep score ** Our sleep score auto combines everything into one simple number, including the percentage of time you spend in REM sleep, deep sleep, your heart rate, HRV, and oxygen during sleep, your sleep duration, and how long it took you to fall asleep. On the checkup screen, you can monitor your health stats against other users of Empirical Sleep and medical norms to understand where you're above, below, and right around the average. ** Take action to improve your sleep ** The goal of all this health monitoring isn't just tracking—it's to act and get better shuteye. The goals tab suggests a comprehensive plan to improve your sleep, including assessing sleep hygiene and risk of sleep apnea. ** Monitor your risk of sleep apnea ** 1 in 8 adults have sleep apnea. What's more, 80% of people with sleep apnea don't realize they have it. On the checkup screen, assess your risk of sleep apnea using a medically-validated questionnaire. If you receive an Apple Watch sleep apnea alert, book a priority appointment directly with a doctor for sleep apnea testing and treatment. ** Native Apple Watch app ** View your sleep duration, onset, quality, and stages (REM/deep/core/awake) directly on your watch using our native Apple Watch sleep app. ** Watch face & iPhone lock screen widgets ** Display your sleep stages, sleep duration, onset, and quality directly on your watch face or your iPhone's lock screen, using the new widgets introduced in iOS 16 and watchOS 9. ** Compatible, integrated with health, and free with an optional subscription ** Empirical Sleep is compatible with Apple Watch Series 3 and above. It integrates with the Health app to auto track your sleep segments, heart rate, HRV, blood oxygen (SpO2), steps, sleep stages, breathing disturbances, sleep apnea alerts, and activity. Empirical Sleep is a free app to download, with an optional paid subscription. ** About Empirical Health ** Empirical Health's mission is to build proactive healthcare. Today's healthcare system spends $1.1T reacting to chronic conditions and only a tenth of that on prevention. Our goal is to flip that and build a new type of primary care that's preventive rather than reactive, starting with sleep. Please seek a doctor’s advice in addition to using this app and before making any medical decisions. If you need a doctor, you book a video visit directly through this app. We accept most major health insurance. ## Key features - Sleep score analysis - REM & deep sleep tracking - Heart rate & HRV monitoring - Sleep apnea risk assessment - Actionable sleep improvement plan - Native Apple Watch app - Watch face & lock screen widgets ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Empirical Sleep Pro | $9.99 | per month | | $94.99 per year | $94.99 | per year | | Empirical Pro | $6.99 | per year | | Empirical Pro | $64.90 | per year | | Empirical Pro | $6.99 | per month | | Empirical Pro | $4.99 | per month | | Empirical Pro | $49.99 | per year | | Empirical Care | $24.00 | per month | | Empirical Membership | $9.00 | per month | | Empirical Membership | $84.00 | per year | | Six months | $124.99 | per 6 months | | Annual subscription | $194.99 | per year | ## Recent user reviews (10 of 18) All indexed reviews: https://appshunter.io/ios/app/empirical-sleep-and-apnea-care/id1623615785/reviews.md ### 1/5 — Fails to connect to Apple Health app *2026-01-14, version 2.12.6* Does not work at all. Turned on all Sharing permissions for Empirical Health in Apple's Health app, but (tried numerous times) no connection is shown in Empirical Health app: cannot access any Health data from Apple watch. Disappointed. ### 1/5 — Not working *2025-10-26, version 2.12.6* The data is seldom available and advised to come back later! ### 1/5 — Only Worked Once *2024-10-10, version 2.12.3* App stopped working after a couple days. Won’t sync up with my Apple Watch sleep data. Don’t recommend wasting your time downloading ### 1/5 — Disaster *2024-05-18, version 2.10.3* Doesn’t work at all. Tracks that I’m asleep when I’m not even in bed. ### 4/5 — Score from Health data *2024-04-30, version 2.10.3* I’ve been looking for an app to give me scores and insights from my sleep data in Health. I don’t use an Apple Watch just another tracker, sync to Health then edit in Health where device thought I was sleeping when I wasn’t. This is the only app I’ve found that kind of does it, though the Today page won’t load. My sleep score is 75, I slept 5.5 hours last night so I’m surprised it’s so high and can’t get an explanation from the app. I am tired and confused but it’s probably not the app’s fault! ### 1/5 — Not opening on IPhone 13 or IPad *2024-01-18, version 2.10* Is there a problem with the app? I just read about it in Reddit ### 1/5 — Good idea, but wildly inaccurate *2023-12-01* Reported issues but no response from company. I like the idea, but with no support and wildly inaccurate reports I’m deleting the program. Example “You went to bed at 10:35pm, you fell asleep at 10:35pm, and awoke at 12:06am.” “You slept for 10h 03m”. Really? ### 1/5 — Meh *2023-11-17, version 2.9.2* Lots of bugs (won’t allow me to enter my birthdate for example), won’t share data with my iPad, doesn’t let you know what a subscription costs, doesn’t share data with the health app. I could go on, but I’m not finding a reason to keep this app. ### 2/5 — So buggy *2023-11-12, version 2.9.2* It constantly reports the wrong data, and when I try to correct it quits out of that screen. This is basically useless ### 1/5 — Clean design, but data is wrong *2023-10-12, version 2.9.1* The data pulled from Apple Health was way way off — by 3 minutes the previous night to hours on past nights (laughably showed me sleeping 17 hours a few nights ago). Obviously something is going haywire. Shame, because the interpretation of the data would be much more useful than what I see in Apple Health, which really gives no context. The app has a nice clean design & was otherwise easy to use ## Frequently asked questions about Empirical Sleep & apnea care ### What does Empirical Sleep do? Empirical Sleep analyzes the health data collected by your Apple Watch, such as sleep stages, heart rate, and breathing disturbances, to provide a comprehensive sleep score. It then offers personalized suggestions and a plan to help you improve your sleep duration, onset, and overall quality. ### What are the key features of this app? Key features include a consolidated sleep score, detailed tracking of REM and deep sleep, heart rate and HRV monitoring, assessment of sleep apnea risk, personalized sleep improvement goals, a native Apple Watch app for on-wrist viewing, and customizable watch face and lock screen widgets. ### Is this app free to use? The app is free to download and use, offering core sleep tracking and analysis features. There is an optional paid subscription for advanced features or services. ### What devices is Empirical Sleep compatible with? Empirical Sleep is compatible with Apple Watch Series 3 and above. It integrates with the Health app to automatically track various health metrics from your watch. ### How can this app help with sleep apnea? The app includes a feature to assess your risk of sleep apnea using a medically-validated questionnaire. If your Apple Watch detects sleep apnea, the app can facilitate booking a priority appointment with a doctor for testing and treatment, with potential insurance coverage. ## Version history (last 5 releases) ### 2.12.6 — 2024-12-04 2.12.6 fixes bugs. 2.12 introduced support for breathing disturbances and sleep apnea notifications. ### 2.12.5 — 2024-12-03 2.12.5 fixes bugs. 2.12 introduced support for breathing disturbances and sleep apnea detection. ### 2.12.4 — 2024-10-15 Empirical Sleep 2.12.4 fixes a bug where sleep duration would be underestimated. 2.12 adds support for breathing disturbances and sleep apnea detection. ### 2.12.3 — 2024-10-02 2.12.13 fixes a bug loading health stats. 2.12 introduces support for sleep apnea notifications and breathing disturbances on Apple Watch Series 9, 10, and Ultra 2. ### 2.12.2 — 2024-09-27 Empirical Sleep 2.12.2 fixes bugs. Empirical Sleep 2.12 introduced support for sleep apnea alerts and breathing disturbances on Apple Watch Series 9, 10, and Ultra 2. ## Apps similar to Empirical Sleep & apnea care | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pillow: Sleep Tracker](https://appshunter.io/ios/app/pillow-sleep-tracker/id878691772) | 4.4 (95,615) | Free | Health & Fitness | | [Sleep Time+ Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026) | 4.8 (2,483) | Free | Health & Fitness | | [Sleepiest Meditation for Sleep](https://appshunter.io/ios/app/sleepiest-meditation-for-sleep/id1244690083) | 4.6 (30,891) | Free | Health & Fitness | | [Sleep Cycle - Tracker & Sounds](https://appshunter.io/ios/app/sleep-cycle-tracker-and-sounds/id320606217) | 4.7 (28,640) | Free | Health & Fitness | | [SleepWatch - Top Sleep Tracker](https://appshunter.io/ios/app/sleepwatch-top-sleep-tracker/id1138066420) | 4.7 (328,469) | Free | Health & Fitness | | [AutoSleep: Watch Sleep Tracker](https://appshunter.io/ios/app/autosleep-watch-sleep-tracker/id1164801111) | 4.7 (61,550) | $8.99 | Health & Fitness | ## More apps by Empirical Health, Inc. - [Empirical Health](https://appshunter.io/ios/app/empirical-health/id6449271489) All apps by Empirical Health, Inc.: https://appshunter.io/developer/1623615997 ## Related topics [free sleep apnea](https://appshunter.io/ios/topics/free-sleep-apnea) · [sleep apnea apple watch](https://appshunter.io/ios/topics/sleep-apnea-apple-watch) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*